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Questions and Answers
What is the probability of a particle with insufficient energy to overcome a potential energy barrier to tunnel through it?
What is the probability of a particle with insufficient energy to overcome a potential energy barrier to tunnel through it?
- Negative
- Zero (correct)
- Undefined
- One
Which phenomenon allows particles to penetrate through classically forbidden regions?
Which phenomenon allows particles to penetrate through classically forbidden regions?
- Quantum entanglement
- Quantum leap
- Quantum fluctuation (correct)
- Quantum dispersion
How does the width of the potential energy barrier affect the probability of quantum tunneling?
How does the width of the potential energy barrier affect the probability of quantum tunneling?
- No effect on probability
- Wider barrier, higher probability
- Narrower barrier, higher probability (correct)
- Probability is always zero
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Study Notes
Quantum Tunneling
- The probability of a particle with insufficient energy to overcome a potential energy barrier to tunnel through it is non-zero.
- Quantum tunneling is the phenomenon that allows particles to penetrate through classically forbidden regions.
- The width of the potential energy barrier affects the probability of quantum tunneling: a narrower barrier leads to a higher probability of tunneling, while a wider barrier leads to a lower probability.
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